Pelican eel-like

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Pelican eel-like
Pelican eel (Eurypharynx pelecanoides)

Pelican eel ( Eurypharynx pelecanoides )

Systematics
Class : Ray fins (Actinopterygii)
Subclass : Neuflosser (Neopterygii)
Subclass : Real bony fish (Teleostei)
Cohort : Elopomorpha
Order : Eel-like (Anguilliformes)
Subordination : Pelican eel-like
Scientific name
Saccopharyngoidei
CR Robins , 1989

The pelican eel-like (Saccopharyngoidei) or bag mouth-like are a subordination of the eel-like , which have particularly adapted to life in the deep sea .

features

In addition to their huge mouth, the animals' bodies appear very small. The fish are scaly, there is no swim bladder, no ribs and no caudal fin. Many bones in the skull are reduced or have disappeared. It is difficult to compare the remaining skeleton with that of other fish and thus to draw conclusions about a relationship. The fact that the larvae resemble those of the eels suggests a relationship with them. There are no fossils of pelican eel-like species.

External system

The pelican eel-like were originally led as a separate order, the Saccopharyngiformes. Phylogenetically , however, they are clearly within the eel-like (Anguilliformes). In a recent revision of the Teleostei system , they are therefore listed as a subordination of the eel-like. The probable family relationships are shown in the following simplified cladogram :

  Anguilliformes   

 other families of the Anguilliformes


   

 Worm Eels (Moringuidae)


   

 Pelican eels (Saccopharyngoidei)


   



 Snipe eels (Nemichthyidae)


   

 Sawtooth snipe eels (Serrivomeridae)



   

 River eels (Anguillidae)







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Familys

The suborder consists of five families and about 30 species.

literature

  • C. Richard Robins: The Phylogenetic Relationships of the Anguilliform Fishes. In: Memoir. Sears Foundation for Marine Research. 1, No. 9, 1989, pp. 9-23 (first description).
  • Joseph S. Nelson : Fishes of the World. Wileys, Hoboken 2006. ISBN 0-471-25031-7 .

Individual evidence

  1. ↑ a b Jun G. Inoue et al. : Deep-ocean origin of the freshwater eels. Biol. Lett. 2010 6, pages 363-366, doi : 10.1098 / rsbl.2009.0989
  2. ^ EO Wiley & G. David Johnson: in A teleost classification based on monophyletic groups. in Joseph S. Nelson, Hans-Peter Schultze & Mark VH Wilson: Origin and Phylogenetic Interrelationships of Teleosts. 2010, Verlag Dr. Friedrich Pfeil, Munich, ISBN 978-3-89937-107-9

Web links

Commons : Pelican eel-like  - collection of images, videos, and audio files